Ecosystem Structure and Components — NEET Biology
📚 Practice ConceptAn ecosystem is a structural and functional unit of nature and it comprises abiotic and biotic components. Abiotic components are inorganic materials- air, water and soil, whereas biotic components are producers, consumers and decomposers. Each ecosystem has characteristic physical structure resulting from interaction amongst abiotic and biotic components. Species composition and stratification are the two main structural features of an ecosystem. Based on source of nutrition every organism occupies a place in an ecosystem.
Which of the following statements regarding the structure and function of an ecosystem are NOT correct? S1. The species composition of an ecosystem is solely determined by the types of plants, with animal species playing a secondary role. S2. Stratification is an example of a functional aspect of an ecosystem, illustrating the dynamics of energy transfer between trophic levels. S3. Biotic and abiotic components interact to create a characteristic physical structure for each ecosystem, but this interaction is not crucial for its overall function. S4. Productivity, decomposition, energy flow, and nutrient cycling are the four fundamental structural components of any ecosystem. S5. The top vertical strata in a forest are typically occupied by herbs and grasses due to their requirement for maximum sunlight.
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